fix cmp and codecompanion

- remove blink dependency
- set up telescope as default provider for codecompanion slash commands

lua/plugins/lspconfig.lua

@@ -1,6 +1,5 @@
 return {
 	"neovim/nvim-lspconfig",
-	dependencies = { "saghen/blink.cmp" },
 	config = function()
 		local lspconfig = require("lspconfig")
 		vim.notify = require("notify")